1995 Aerostar with turn signal, A/C, heater, and blower motor issues.

[bigbill09]

My 1995 Aerostar's turn signals, back-up lights, and blower motor stopped working at what seems like the same time. I replaced the multi-function switch, the blower motor and blower resister. Turn signals are not working as well as the blower. Checked the fuses...seem good. Any suggestions as to what I might check now? Thanks

 

[BrooklynBay]

Welcome to this forum! Do you have a schematic diagram?

 

[bigbill09]

no, wish I could find one.

 

[BrooklynBay]

1995 Aerostar fuse block diagram.

This diagram was in my Ford software:

 

[bigbill09]

thanks...I have checked #5 and #9...according to the diagram I need to check #9.

 

[bigbill09]

fuses are good and fuse box has power. new multifunction switch, new blower, new blower resister===still no power to turn signals, and no blower. Checked as many grounds as I could find. Found, what I thought to be, the blower relay and the turn signal relay; checked both of them with a known good relay. Both relays seem to be good. Still looking. Any suggestions?????????????

 

[BrooklynBay]

Did you bypass the relay socket with a jumper wire to see if the turn signal or the blower motor turn on? Did you test the sockets with a multimeter or a test light?

 

[bigbill09]

I did check the relay sockets with my multi-meter--both sockets have power. Also, I put a known "good" relay (ignition relay) in the sockets and checked to see if it was the relay. The relays must be good (the "good" relay did not fix the blinkers or the blower). How would I by-pass the relay socket? Also, I am checking the grounds (with van running and off) to see if there is voltage deviation.

 

[BrooklynBay]

A relay socket has two wires to energize the relay, and either 2 or 3 wires for the contacts. When I was referring to jumping the relay, I meant using a jumper wire in the socket in the place where the contacts would normally be (if the relay were still plugged in). The relay's main function is to behave like a switch.